Cup for working valves



mss ws Feb. '19 1924.,

W, J, WALKER CUP FOR WORKING VALVES Filed Nov. 22. 1922 reamed Feb; 19',19241 means where "valves used in we r f .umrao wlnuem J. wnxnnhrnnanronn, rnrmsrnvnnm, assreuon mimic games, or nnenronnrmtnsvtvenm.

on? non wonKinsna'nvns.

"Application mea'mvemberea1922'. Serial arm-502,569.

To alll'wlzonc it camera:

Be it'kx'f'wn that I, WILLIAMJ. WALKER;

a citizen'of the United "States, residing at Bradford, in the county ofMcKe'an'. and State of Pennsylvania, have invented cer tainnewfizndusefulimprtgvements in Cups for'Working Valves, or which thefollowing visaspecification, reference being had to the p ny a ings Thisinvention relat ias to eups for working It is an'ob'ect of-theinventionto provide afietrp of the working val we' may-he read' y exp 'anded.

It is'a'nother object of the invention to character I wherein anding acup of the medium, of

the valve from wear due to enormous pres 5 sure.

' With these and other objects in view; the. invention consists in theimproved'construction and arrangement of parts to be here,

- drawings, in'which:-.-

' Figure 1 isia view in elevation of a-workcup 7 and beveled face 1. 0

inafter -more particularly described, fully claimedand illustrated inthe accompanying in? valve showing I theinvention applied a igure 2 is asectional view oft e devlce removed "from the valve;

Figure 3 is a perspective view of the ex pandmg rings; and

- Tfo 5 structed preferabl of lead, reinforced with I Figure 4' is 'afragmentary elevationof an other form of the invention. I

designates a 1 V valve includlurality of cups 6 0 conventional. t iswellknown that these cups, in view of the enormous pressure,particularly at the bottom of th'e'well; wear out ina.

short time, thus reducin the efiiciency of the well,'as well asinterringwith protection."

In'order to overcome this, disadvantage there. is provided a cup"? whichis concoppefwire" so t at the .cup "will readily expand. 'This cup has arelatively large central opening 8, the annular; portion 9 of he bottomof the cup providing a seat for -a,"p'urpcsetobehereinafier described;-The;

xulpger edge 10 of the cup' is inwardlybev-g' 4ee;.' v

- 1 ption. of thecupqInview-Iofi; connection ith the cup 7, a sleeve 11.1,

,o is provided; the lower edge portion of the sleeve being-rounded. Theupper edge of the sleeve is provided with a flange 13.

The n per edge of the sleeve at the junctiono the flange With'the'sleeve is "flared.

' The sleeve is considerably longer than" the cup so thattheupperpo'rtion'of the sleeve will extend "a considerable distance I abovethe cup., The lower end of the sleeve isintended torest upon the-seat ofthe cup 7- and when so disposed thehoreof the sleeve registers with theop enin 8 tos'uhstantiell 'forinaocontinuation'o the slee ve.

In 'or'cr to'expand the cup 7 during the working operation of the valvethere is provided tan expanding ring 14, said ringzhav-' irig its outerface 15 downwardly and inwardiy beveled.- Theinncrwallv 16 of the rin isintended to engage theouter wall of-tesleevell. v

"In use, the cup 7 is intended to be applied to the working valve andthesleeve disposed within the cup. It is obvious that when the workingvalve is under pressure, for instance, when: being drawn upwardly, thatthe ring. 14 will be urged inwardly cup 7 in view of the beveled ortion10 ofjthe the ring. This causes thejcup 7, in view of its-flexibility,to

expand, and thus" release the remaining cups of the working valve from agreater por-' tion of the pressure, thus increasingthe ef-" ficienc'y ofthe device.

In Figure 4, another form of the invenv tion is shown. This formconsistsin the application of a spring 17, one end of which is adapted vtoengage the upper .face ofthe ring 14;, while the op osite end isintended to engage the l'ower' aceofthe' flange "is, The purpose ofthespring is tov assistin v urging the expanding'ring' 14 inwardly ("f5the'cup 7.-

'From' the 'iforegoing it will be readily seen that this; 'invention'rovides ag-novel form of expanding cap or workin valves ca-I of the'pablejof 'h'eing used in connectionwith the working valve 'ofany whichis .expansible and retractable accordg a s r l s o'the-materialdlssharge' by thepunip. In

ing to the movement bf the working valve;

This is made possible hy-rthereinfforcingi cbppe'rwire and thelead usedin the formaewedge-shaped tormatio the 5311cstantiallyt spendi Mas ringit will he an easy matter for the ring to expand the cup when pressureis applied. to the ring during movement of the working valve, and whenthe movement of the e ,yelve is reversed, the ring will be readily voved outwardly of the cup to permit the.

upto'edjust itself; All of these features possessed by adevice which issimple in ionstruction andpompact in form and which,

tional forms of working valves.

' What is claimed is z, v

;. In a cup structure, for working valves Including a piston, a cuparranged upon the 15, piston formed of soft metal reinforced with .wharder metallic wire and adapted to'be v expanded, asleeve on the pistonengagingthe.-.,bottom portion of the cup and aspring pressed ringslidable uponthe sleeve and 2 having a beveled surface engaging withincapable ofibeing applied to the conven- "at p 1,433,988

the open end of the cup whereby to expand the same.

2. A oup for working valves including a piston, comprising 1 cup of leadhaving reinforcing. Wire imbedded therein, said cup having its bottomportion formed with an opening through iwhieh the piston passes, theflange of the on flaring outwardly from the bottom thereo a sleeve onthe piston fitting against the inside'of the bottom of the cup, and aspring preesed ring slideble on the sleeve and having a beveled surfaceengaging within the open upper end of the cup. i 3. A cup for workingvalves formed of lead having copper wire imbedded therein.

' In testimony whereof I hereunto afix my signature.

WILLIAM J. WALKER.

